ID V4K3V4_EUTSA Unreviewed; 383 AA.
AC V4K3V4;
DT 22-JAN-2014, integrated into UniProtKB/TrEMBL.
DT 22-JAN-2014, sequence version 1.
DT 24-JAN-2024, entry version 57.
DE RecName: Full=Flap endonuclease 1 {ECO:0000256|HAMAP-Rule:MF_03140};
DE Short=FEN-1 {ECO:0000256|HAMAP-Rule:MF_03140};
DE EC=3.1.-.- {ECO:0000256|HAMAP-Rule:MF_03140};
DE AltName: Full=Flap structure-specific endonuclease 1 {ECO:0000256|HAMAP-Rule:MF_03140};
GN ORFNames=EUTSA_v10004386mg {ECO:0000313|EMBL:ESQ32180.1};
OS Eutrema salsugineum (Saltwater cress) (Sisymbrium salsugineum).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; malvids; Brassicales; Brassicaceae; Eutremeae; Eutrema.
OX NCBI_TaxID=72664 {ECO:0000313|EMBL:ESQ32180.1, ECO:0000313|Proteomes:UP000030689};
RN [1] {ECO:0000313|EMBL:ESQ32180.1, ECO:0000313|Proteomes:UP000030689}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=23518688; DOI=10.3389/fpls.2013.00046;
RA Yang R., Jarvis D.E., Chen H., Beilstein M.A., Grimwood J., Jenkins J.,
RA Shu S., Prochnik S., Xin M., Ma C., Schmutz J., Wing R.A.,
RA Mitchell-Olds T., Schumaker K.S., Wang X.;
RT "The Reference Genome of the Halophytic Plant Eutrema salsugineum.";
RL Front. Plant Sci. 4:46-46(2013).
CC -!- FUNCTION: Structure-specific nuclease with 5'-flap endonuclease and 5'-
CC 3' exonuclease activities involved in DNA replication and repair.
CC During DNA replication, cleaves the 5'-overhanging flap structure that
CC is generated by displacement synthesis when DNA polymerase encounters
CC the 5'-end of a downstream Okazaki fragment. It enters the flap from
CC the 5'-end and then tracks to cleave the flap base, leaving a nick for
CC ligation. Also involved in the long patch base excision repair (LP-BER)
CC pathway, by cleaving within the apurinic/apyrimidinic (AP) site-
CC terminated flap. Acts as a genome stabilization factor that prevents
CC flaps from equilibrating into structures that lead to duplications and
CC deletions. Also possesses 5'-3' exonuclease activity on nicked or
CC gapped double-stranded DNA, and exhibits RNase H activity. Also
CC involved in replication and repair of rDNA and in repairing
CC mitochondrial DNA. {ECO:0000256|HAMAP-Rule:MF_03140}.
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03140};
CC Note=Binds 2 magnesium ions per subunit. They probably participate in
CC the reaction catalyzed by the enzyme. May bind an additional third
CC magnesium ion after substrate binding. {ECO:0000256|HAMAP-
CC Rule:MF_03140};
CC -!- SUBCELLULAR LOCATION: Nucleus, nucleolus {ECO:0000256|HAMAP-
CC Rule:MF_03140}. Nucleus, nucleoplasm {ECO:0000256|HAMAP-Rule:MF_03140}.
CC Mitochondrion {ECO:0000256|HAMAP-Rule:MF_03140}. Note=Resides mostly in
CC the nucleoli and relocalizes to the nucleoplasm upon DNA damage.
CC {ECO:0000256|HAMAP-Rule:MF_03140}.
CC -!- SIMILARITY: Belongs to the XPG/RAD2 endonuclease family. FEN1
CC subfamily. {ECO:0000256|HAMAP-Rule:MF_03140}.
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DR EMBL; KI517748; ESQ32180.1; -; Genomic_DNA.
DR RefSeq; XP_006394894.1; XM_006394832.1.
DR AlphaFoldDB; V4K3V4; -.
DR SMR; V4K3V4; -.
DR STRING; 72664.V4K3V4; -.
DR EnsemblPlants; ESQ32180; ESQ32180; EUTSA_v10004386mg.
DR GeneID; 18012670; -.
DR Gramene; ESQ32180; ESQ32180; EUTSA_v10004386mg.
DR KEGG; eus:EUTSA_v10004386mg; -.
DR eggNOG; KOG2519; Eukaryota.
DR OMA; GSQDYDS; -.
DR OrthoDB; 5479162at2759; -.
DR Proteomes; UP000030689; Unassembled WGS sequence.
DR GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
DR GO; GO:0005730; C:nucleolus; IEA:UniProtKB-SubCell.
DR GO; GO:0005654; C:nucleoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008409; F:5'-3' exonuclease activity; IEA:UniProtKB-UniRule.
DR GO; GO:0017108; F:5'-flap endonuclease activity; IEA:UniProtKB-UniRule.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006284; P:base-excision repair; IEA:UniProtKB-UniRule.
DR GO; GO:0043137; P:DNA replication, removal of RNA primer; IEA:UniProtKB-UniRule.
DR CDD; cd09907; H3TH_FEN1-Euk; 1.
DR CDD; cd09867; PIN_FEN1; 1.
DR Gene3D; 1.10.150.20; 5' to 3' exonuclease, C-terminal subdomain; 1.
DR Gene3D; 3.40.50.1010; 5'-nuclease; 1.
DR HAMAP; MF_00614; Fen; 1.
DR InterPro; IPR002421; 5-3_exonuclease.
DR InterPro; IPR036279; 5-3_exonuclease_C_sf.
DR InterPro; IPR023426; Flap_endonuc.
DR InterPro; IPR008918; HhH2.
DR InterPro; IPR029060; PIN-like_dom_sf.
DR InterPro; IPR006086; XPG-I_dom.
DR InterPro; IPR006084; XPG/Rad2.
DR InterPro; IPR019974; XPG_CS.
DR InterPro; IPR006085; XPG_DNA_repair_N.
DR PANTHER; PTHR11081:SF9; FLAP ENDONUCLEASE 1; 1.
DR PANTHER; PTHR11081; FLAP ENDONUCLEASE FAMILY MEMBER; 1.
DR Pfam; PF00867; XPG_I; 1.
DR Pfam; PF00752; XPG_N; 1.
DR PRINTS; PR00853; XPGRADSUPER.
DR SMART; SM00475; 53EXOc; 1.
DR SMART; SM00279; HhH2; 1.
DR SMART; SM00484; XPGI; 1.
DR SMART; SM00485; XPGN; 1.
DR SUPFAM; SSF47807; 5' to 3' exonuclease, C-terminal subdomain; 1.
DR SUPFAM; SSF88723; PIN domain-like; 1.
DR PROSITE; PS00841; XPG_1; 1.
PE 3: Inferred from homology;
KW DNA damage {ECO:0000256|ARBA:ARBA00022763, ECO:0000256|HAMAP-
KW Rule:MF_03140};
KW DNA repair {ECO:0000256|ARBA:ARBA00023204, ECO:0000256|HAMAP-
KW Rule:MF_03140};
KW DNA replication {ECO:0000256|ARBA:ARBA00022705, ECO:0000256|HAMAP-
KW Rule:MF_03140};
KW Endonuclease {ECO:0000256|ARBA:ARBA00022759, ECO:0000256|HAMAP-
KW Rule:MF_03140};
KW Exonuclease {ECO:0000256|ARBA:ARBA00022839, ECO:0000256|HAMAP-
KW Rule:MF_03140};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_03140};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_03140};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_03140}; Mitochondrion {ECO:0000256|HAMAP-Rule:MF_03140};
KW Nuclease {ECO:0000256|ARBA:ARBA00022722, ECO:0000256|HAMAP-Rule:MF_03140};
KW Nucleus {ECO:0000256|HAMAP-Rule:MF_03140};
KW Phosphoprotein {ECO:0000256|HAMAP-Rule:MF_03140};
KW Reference proteome {ECO:0000313|Proteomes:UP000030689}.
FT DOMAIN 1..108
FT /note="XPG N-terminal"
FT /evidence="ECO:0000259|SMART:SM00485"
FT DOMAIN 29..299
FT /note="5'-3' exonuclease"
FT /evidence="ECO:0000259|SMART:SM00475"
FT DOMAIN 147..219
FT /note="XPG-I"
FT /evidence="ECO:0000259|SMART:SM00484"
FT REGION 333..383
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 383 AA; 42677 MW; E13673CE77D395CD CRC64;
MGIKGLTKLL ADNAPNAMKE QKFESYFGRK IAVDASMSIY QFLIVVGRTG TEMLTNEAGE
VTSHLQGMFN RTIRLLEAGI KPVYVFDGKP PELKRQELAK RYSKRADATA DLTGAIEAGN
KEDIEKYSKR TVKVTKQHND DCKRLLRLMG VPVVEATSEA EAQCAALCKS GKVYGVASED
MDSLTFGAPK FLRHLMDPSS RKIPVMEFDI AKILEELQLT MDQFIDLCIL SGCDYCDSIR
GIGGQTALKL IRQHGSIETI LENINKERYQ IPEEWPYNEA RKLFKEPDVL TDEEQLDIKW
TSPDEAGIVQ FLVNENGFNI DRVTKAVEKI KSAKNKSSQG RLESFFKPVA NSSAPAKRKE
IPESNAKGAT NKKTKGGGGR KKK
//
